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  <title>Stop buffering write requests to the Phar archive, and save changes to disk</title>

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</div><hr /><div id="phar.stopbuffering" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Phar::stopBuffering</h1>
  <p class="verinfo">(PHP &gt;= 5.3.0, PECL phar &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">Phar::stopBuffering</span> &mdash; <span class="dc-title">Stop buffering write requests to the Phar archive, and save changes to disk</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-phar.stopbuffering-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>Phar::stopBuffering</strong></span>
    ( <span class="methodparam">void</span>
   )</div>


  <p class="para rdfs-comment">
   <span class="function"><strong>Phar::stopBuffering()</strong></span> is used in conjunction with the
   <span class="function"><a href="phar.startbuffering.html" class="function">Phar::startBuffering()</a></span> method.  <span class="function"><a href="phar.startbuffering.html" class="function">Phar::startBuffering()</a></span>
   can provide a significant performance boost when creating or modifying a
   Phar archive with a large number of files.  Ordinarily, every time a file
   within a Phar archive is created or modified in any way, the entire Phar
   archive will be recreated with the changes.  In this way, the archive will
   be up-to-date with the activity performed on it.
  </p>
  <p class="para">
   However, this can be unnecessary when simply creating a new Phar archive,
   when it would make more sense to write the entire archive out at once.
   Similarly, it is often necessary to make a series of changes and to ensure
   that they all are possible before making any changes on disk, similar to the
   relational database concept of transactions.  The
   <span class="function"><a href="phar.startbuffering.html" class="function">Phar::startBuffering()</a></span>/<span class="function"><strong>Phar::stopBuffering()</strong></span> pair
   of methods is provided for this purpose.
  </p>
  <p class="para">
   Phar write buffering is per-archive, buffering active for the
   <em>foo.phar</em> Phar archive does not affect changes
   to the <em>bar.phar</em> Phar archive.
  </p>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-phar.stopbuffering-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-phar.stopbuffering-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   <a href="class.pharexception.html" class="classname">PharException</a> is thrown if any problems are encountered
   flushing changes to disk.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-phar.stopbuffering-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-675">
    <p><strong>Example #1 A <span class="function"><strong>Phar::stopBuffering()</strong></span> example</strong></p>
    <div class="example-contents"><p>
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$p&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Phar</span><span style="color: #007700">(</span><span style="color: #0000BB">dirname</span><span style="color: #007700">(</span><span style="color: #0000BB">__FILE__</span><span style="color: #007700">)&nbsp;.&nbsp;</span><span style="color: #DD0000">'/brandnewphar.phar'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'brandnewphar.phar'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">[</span><span style="color: #DD0000">'file1.txt'</span><span style="color: #007700">]&nbsp;=&nbsp;</span><span style="color: #DD0000">'hi'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">startBuffering</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$p</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getStub</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setStub</span><span style="color: #007700">(</span><span style="color: #DD0000">"&lt;?php<br />function&nbsp;__autoload(\$class)<br />{<br />&nbsp;&nbsp;&nbsp;&nbsp;include&nbsp;'phar://brandnewphar.phar/'&nbsp;.&nbsp;str_replace('_',&nbsp;'/',&nbsp;\$class)&nbsp;.&nbsp;'.php';<br />}<br />Phar::mapPhar('brandnewphar.phar');<br />include&nbsp;'phar://brandnewphar.phar/startup.php';<br />__HALT_COMPILER();"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$p</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">stopBuffering</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$p</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getStub</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
string(24) &quot;&lt;?php __HALT_COMPILER();&quot;
string(195) &quot;&lt;?php
function __autoload($class)
{
    include &#039;phar://&#039; . str_replace(&#039;_&#039;, &#039;/&#039;, $class);
}
Phar::mapPhar(&#039;brandnewphar.phar&#039;);
include &#039;phar://brandnewphar.phar/startup.php&#039;;
__HALT_COMPILER();&quot;
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-phar.stopbuffering-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="phar.startbuffering.html" class="function" rel="rdfs-seeAlso">Phar::startBuffering()</a> - Start buffering Phar write operations, do not modify the Phar object on disk</span></li>
    <li class="member"><span class="function"><a href="phar.isbuffering.html" class="function" rel="rdfs-seeAlso">Phar::isBuffering()</a> - Used to determine whether Phar write operations are being buffered, or are flushing directly to disk</span></li>
   </ul>
  </p>
 </div>


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